KR101918713B1 - Pressing-in method of aiming bolt for headlamp and the pressing-in device of the aiming bolt and torque washer - Google Patents

Abstract

The present invention relates to an aiming bolt indenting method and an installation device of an aiming bolt, which can perform installation and test with in a single process. The aiming bolt indenting method comprises a step of indenting an aiming bolt (20) into an indenting hole (11) formed for indenting the aiming bolt (20) into a headlamp housing (10), and rotating and indenting the aiming bolt (20) in a process of indenting the aiming bolt (20) into the indenting hole (11). Even when using the aiming bolt for a long time, a rotation torque of the aiming bolt is maintained, so that moisture penetration inside a headlamp is prevented and illumination of the head lamp is not affected by the moisture, thereby particularly promoting safety of night driving.

Description

Technical Field [0001] The present invention relates to an aiming bolt indenting method and an aiming bolt and a torque washer pressing device.

The present invention relates to an aiming bolt indenting method and an indentation device of an aiming bolt and a torque washer. More particularly, the present invention relates to an aiming bolt indenting method and a torque washer indentation device,

The aiming bolt is a bolt that is installed in the headlamp housing so that the headlamp angle adjustment of the car can be manually operated.

However, since the headlamp causes a considerable difference in illuminance especially at night according to the front and rear surfaces of the inner lens, the inside of the headlamp is designed in a sealed structure so that external foreign matter or moisture can not penetrate. Or the housing in which the head lamp is installed may be provided with a passage so that the moisture penetrated from the outside can be discharged to the outside at a high pressure due to the high temperature inside.

Accordingly, when the air-tightening bolt is installed in the press-in hole, air can not be penetrated into the head lamp when the air-tightness is maintained when the air-tightening bolt is installed in the press-in hole, which is one of the passages connecting the inside and the outside of the head lamp housing. This is because the amming bolt is a part installed to be able to change the reflector inside the head lamp by operation from the outside of the head lamp. Therefore, the aiming bolt must be able to be rotated at a constant torque with it installed in the press-in ball, which is an important requirement for the stud bolt to be properly installed in the press-in ball.

However, when the Aiming bolt is used for a certain period of time, the friction between the outer circumferential surface of the Aiming bolt and the inner circumferential surface of the indentation ball gradually worn out, and the rotating torque of the Aiming bolt gradually decreases. It is easier to do so, and you must either reinstall the Aiming Bolt or replace it with a new one.

However, this process incurs a lot of maintenance costs and also requires time and effort for maintenance.

In order to solve this problem, there has been conventionally attempted to press the Aiming bolt at a constant torque into the press-in ball. However, after a certain time of use, the rotation torque of the Aiming bolt becomes small, do.

Therefore, despite the demand for the technique of installing the aiming bolt that can keep the turning torque of the aiming bolt even if it is used for a long time, there is no technology that solves the problem at present.

Patent Registration No. 10-1697326 (Registration date: Jan. 11, 2017)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a headlamp apparatus capable of preventing the penetration of moisture into the headlamp, To provide an aiming bolt installation technique and an aiming bolt installation device in which the safety of the robot can be further improved.

According to another aspect of the present invention, there is provided an aiming bolt indentation method for adjusting a reflector angle in a headlamp of a vehicle, the method comprising the steps of: applying torque to the indentation hole formed in the headlamp housing for press- And press-fitting the washer while rotating the torque washer and the aiming bolt in the process of press-fitting the engaging bolt into the press-fitting hole.

In this case, the rotating and press-fitting step is preferably performed by stopping the press-fitting periodically and rotating the aiming bolt in place so that the rotating torque of the aiming bolt is reduced to the design target torque value Is checked during the installation process of the aiming bolt.

The rotating and press-fitting step includes a first step of press-fitting the pressing bolt into the press-fitting hole while rotating the aiming bolt, and a second step of rotating the pressing bolt while the press- A second step of measuring a rotating torque of the engine or the engine and a turning torque of the engine or an aiming bolt caused by the engine, And a third step of replacing the aiming bolt with a new one and, when the torque measured in the second step exceeds the design target torque value, rotating the aiming bolt at high speed to lower the torque value until the target torque value is reached.

Herein, the first to third steps are preferably performed by a rotating and press-fitting apparatus connected to a computer and operated by a program set in the computer, so that the first to third steps are automatically performed.

According to another aspect of the present invention, there is provided an apparatus for installing an aiming bolt, comprising: a head formed on a top surface of a cross groove corresponding to a driver blade; a press-in portion extending long from the head; And an adjusting portion in the form of a bevel gear which is coupled to the head around the head so as to be mounted in an engaging bolt press-fit groove formed in a housing for an automotive head lamp, wherein a driver is formed at an end portion A rotation motor coupled to the cruciform groove and having a thread formed on an outer circumferential surface to a predetermined length from an end thereof, a rotary motor for rotating the rotary shaft, a circular plate having a predetermined thickness formed with a guide hole into which a rotary shaft is inserted, A guide disc on which a corresponding thread corresponding to the thread is formed, And a housing clamp for fixing the housing in the coupling process between the aiming bolt and the housing, wherein the guide disc is fixed to the guide disc, When the guide disk and the locking disk are attached, the rotation of the guide disk is stopped, and the rotation shaft rotates the corresponding thread formed in the guide hole at the center of the guide disk And then advances in the axial direction of the rotary shaft.

Wherein the stopper is a corresponding fixture formed on a surface of the both sides of the locking disc that faces the guide disc and can be coupled to the jig, When the locking disk is detached, engagement and disengagement occurs between the jig and the corresponding jig.

Preferably, the jig is a gear teeth jig that is radially symmetrical with respect to a center of the guide disc, the jig and the mountain alternating with each other, and the corresponding jig is formed to have the same shape as the jig and engage with the jig .

Preferably, the control unit may include a reciprocating driving unit that varies the locking disc so that the locking disc advances or retracts in a direction toward the guide disc, and a control unit that is connected to the rotating motor and the reciprocating driving unit, A control unit including a relay, a timer, a counter, and a calculation unit is provided to automatically place the aiming bolt in the aiming bolt press-fitting groove and test the installation state of the aiming bolt.

The aiming bolt installation method, the aiming bolt and the torque washer press-in apparatus according to the present invention maintain the rotation torque of the aiming bolt even if the aiming bolt is used for a long time, thereby preventing moisture penetration inside the headlamp, As a result, the durability of the headlamp assembly is increased, so that the safety of the nighttime operation can be further improved.

1 is an exploded perspective view showing a method of installing an aramid bolt according to the present invention,
2 is a side cross-sectional view showing a method of installing an aramid bolt according to the present invention,
3A shows a contact shape between an aramid bolt and an inner circumferential surface of a press-in ball according to a conventional method for installing an aiming bolt,
FIG. 3B is a view showing the contact shape between the aramid bolt and the inner circumferential surface of the press-
3C is a partial enlarged view of Fig. 3B,
FIG. 4 is a perspective view of the aiming bolt installation apparatus according to the present invention,
FIG. 5 is a side view and operating state of an installation bolt installation apparatus according to the present invention,
6A and 6B are front sectional views showing the principle of the aiming bolt installation apparatus according to the present invention,

The specific structure or functional description presented in the embodiment of the present invention is merely illustrative for the purpose of illustrating an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention can be implemented in various forms. And should not be construed as limited to the embodiments described herein, but should be understood to include all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, a method of installing the aramid bolt 20 according to the present invention will be described first. Next, the press fitting device 40 of the aramid bolt 20 will be described.

The method of installing the aiming bolts 20 according to the present invention is to press the aiming bolts 20 into the press-fitting holes 11 formed for press-fitting the aiming bolts 20 into the headlamp housing 10 , And pressing the aramid bolt (20) while rotating the aramid bolt (20) in the process of press-fitting the aramid bolt (20) into the press-in hole (11).

FIG. 1 is an exploded perspective view showing a state in which the aiming bolts 20 are installed in the press-in holes 11 formed in the housing 10 of the headlamp. Here, the aiming bolt 20 has a head 24 formed on the tip of the cross groove corresponding to the driver blade, a press-in portion 22 extending long from the head 24, and a press- And a control unit 23 in the form of a bevel gear coupled to the head 24 so as to surround the coupling unit 21.

Here, the portion in contact with the inner circumferential surface of the press-in hole 11 is the press-in portion 22 of the aiming bolt 20. The press-fitting hole 11 formed in the housing 10 is elongated by the press-in port 12 extending to the back surface of the housing 10 as shown in FIG. 1, (22) also has a certain length. Therefore, as shown in FIG. 2, most of the outer circumferential surface of the press-in portion 22 is in contact with the inner circumferential surface of the press-in hole 11 in the press- At this time, as shown in Figs. 1 and 2, the torque washer 30 is fastened to the aiming bolt 20 at the end of the pressure inlet.

However, conventionally, a method of striking the aiming bolt 20 when the aiming bolt 20 is press-fitted into the press-in hole 11 is often used. In this case, much difference arises in quality related to whether the aiming bolt 20 is pressed into the housing 10 and rotated at a constant torque according to the strength of the hammer 20 and the fine directional error.

Therefore, attempts have been made to press the aiming bolt 20 at a constant speed using a machine in a way that the aiming bolt 20 can be rotated uniformly and with a constant torque for a long period of time during use.

However, even though the aiming bolts 20 are press-fitted at a constant speed, a phenomenon that the torque of the aiming bolts 20 is reduced in a relatively short time is loosened.

Therefore, in the present invention, this phenomenon is sufficiently brought into contact with the inner circumferential surface of the press-in hole 11 formed in the housing 10, which is a plastic injection product, and the outer circumferential surface of the press-in portion of the aramid bolt 20 during the installation of the aiming bolt 20 As a means for achieving sufficient contact between the inner circumferential surface of the press-in hole 11 and the outer circumferential surface of the aiming bolt 20, it is assumed that press-fitting is performed while the aiming bolt 20 is rotated, The constant rotation torque of the aiming bolt 20 can be kept to a great extent.

3A, when the engaging bolt 20 is press-fitted in the conventional manner without rotating the engaging bolt 20, the engaging bolt 20 is slightly press-fitted between the press-in portion of the engaging bolt 20 and the inner circumferential surface of the press- , Many voids (G) remain unfilled. This phenomenon is observed in a horizontal cross section, and some sections are contacted in the microstructure, but in the remaining section, no close contact is made in the microstructure, and when wear due to use for a certain period of time occurs, .

As shown in FIG. 3B, when the aramid bolt 20 is pressed and inserted, the contact surface between the outer circumferential surface of the press-in portion 22 of the aramid bolt 20 and the inner circumferential surface of the press- Since the rotation direction is orthogonal to the press-in direction, a deposition section AD to be described later is generated along the rotation direction, and as the press-insertion progresses, the deposition section AD gradually grows, The contact between the aiming bolt 20 and the press-in hole 11 is maintained until the abrasion of the aiming bolt 20 is continued for a long time, so that the turning torque of the aiming bolt 20 can be maintained constant for a long period of time.

3B and 3C, the fine irregularities on the surface of the aiming bolt 20 are pressed against the inner circumferential surface of the press-in hole 11 by fine irregularities The adhesive section AD as a contact section between the irregularities on the side of the aiming bolt 20 and the irregularities on the side of the press-in hole 11 is generated and the adhesion section AD gradually grows. Secondly, the irregularities on the side of the aiming bolt 20 come out while spirally engraving the extremely fine concavo-convex locus on the inner circumferential surface of the press-in hole 11. Therefore, the locus formed on the inner circumferential surface of the press- This is like touching several thousand fine threads that can be brought into close contact with each other.

Therefore, the unevenness on the side of the aiming bolt 20 penetrates deeper in the direction of the inner circumferential surface of the press-in hole 11 while the adhering adhesion (AD) effect and the thread-like similar effect occur, No gap is formed between the bolt 20 and the inner circumferential surface of the press-in hole 11 so that moisture or moisture can permeate. In addition, even if the abrasion occurs, in order to allow the water to penetrate the entire length of the press-in hole 11, it is necessary to exceed a number of bending sections so that penetration of moisture can be substantially prevented.

On the other hand, conventionally, the step of inspecting whether the aiming bolt 20 is stably rotatable with a constant-sized torque after installation is performed after the step of installing the aiming bolt 20. This is because the rotation torque measurement of the aiming bolt 20 and the installation of the aiming bolt 20 are made with completely different equipment. In this case, since the determination of the failure is made after the installation of the aiming bolts 20, a step of removing the aiming bolts 20 is again required if the failure is judged.

However, in the present invention, it is possible to test whether or not the installation bolts 20 are properly installed during the installation process of the aiming bolts 20, and it is also possible to determine whether or not the installation bolts 20 are properly installed so that calibration can be performed during the installation process.

To this end, the present applicant proposes an aiming bolt 20 and a torque washer press-fitting device 40 shown in Figs. 4 to 6B.

The aiming bolt 20 and the torque washer press-fitting device 40 are attached to the frame 41 as shown in Fig. 4, the rotary shaft 43, the rotary motor 42, the guide disc 45, 44 and a housing clamp (not shown) for fixing the head lamp housing 10.

The rotating shaft 43 is formed in the shape of a cross or a straight driver so that a thread is formed on the outer circumferential surface from a lower end to a constant height and a lower end of the rotating shaft 43 is engageable with a cross groove formed in the head of the aiming bolt 20.

The rotary motor 42 is installed above the rotary shaft 43 to rotationally drive the rotary shaft 43. At this time, the rotary motor 42 is installed so that the rotary shaft 43 can be vertically changed so that it can be lowered when the rotary shaft 43 is rotated while being driven by the thread of the center of the guide disk 45, as will be described later.

The guide disc 45 is a member that is coupled to the threaded portion of the rotary shaft 43 and has a guide hole through which the rotary shaft 43 passes, and the inner peripheral surface of the guide hole is engaged with the thread of the rotary shaft 43 Corresponding threads are formed. The guide disc 45 is mounted on the frame 41 so as to be rotatable in place without being vertically variable and fixed in height.

The locking disk 44 is driven by a hydraulic mechanism (not shown) which is separately installed and is not rotated. The locking disk 44 is installed on the upper portion of the guide disk 45 as shown in FIG. 4, (Not shown). A protruding structure is formed on the surfaces of the locking disc 44 and the guide disc 45 facing each other.

The protrusion structure may be formed in various forms. As shown in the embodiment of FIGS. 4 to 6B, a circular gear tooth having a shape in which the valley and the mountain extend radially with respect to the center of the rotation shaft 43 is formed .

Therefore, when the locking disk 44 is lowered and engaged with the guide disk 45 in accordance with the driving operation of the separately provided hydraulic mechanism (not shown), the locking disk 44 is not rotated so that the guide disk 45 is not rotated So that the outer peripheral surface thread of the rotary shaft 43 slides along the corresponding thread of the center of the guide disk so that the rotary shaft 43 can be rotated and lowered or raised.

6B, in the state where the locking disc 44 and the guide disc 45 are coupled to each other, the rotating shaft 43 is lowered while being rotated, so that the aramid bolt 20 is rotationally press- When the locking disc 44 is detached from the guide disc 45, the rotating shaft 43 is rotated together with the guide disc so that the guide disc idles, so that the rotating shaft 43 is not also lowered but is rotated in place.

When the ramming bolt 20 is press-fitted only to a certain depth in the process of press-fitting the aramid bolt 20, once the locking disk 44 is lifted up and separated from the guide disk 45, the rotary shaft 43 rotates in place, The torque of the aiming bolt 20 is measured immediately.

In this case, if the rotating torque of the aiming bolt 20 is constant and the design target torque value is reached, the locking disk 44 is engaged with the guide disk 45 and the rotating shaft 43 and the aiming bolt 20 are rotated The installation process continues as it is lowered.

Since the inspection process is repeated several times, the press-fitting process of the aiming bolt 20 is constantly checked, so that no bad determination is made at the final stage of the installation of the aiming bolt 20, So that a separate failure test process can be omitted and the productivity can be improved remarkably.

If the torque value of the aiming bolt 20 is higher than the designed value, the torque value can be lowered by the target torque value by performing the in-place rotation at high speed during the press fitting installation of the aiming bolt 20.

Since the press-fitting installation and the intermediate inspection can be performed by a single device, the entire process of press-fitting installation and inspection can be easily and automatically implemented. A control unit (not shown) configured by a relay, a timer, a counter, and calculation means may be provided for automating such installation and inspection processes.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

AD: Adhesion section G: Pore
10: housing 11: press-in ball
12: pressure inlet 13: head lamp installation window
20: Aiming bolt 21: Coupling part
22: press-in portion 23:
24: Head 30: Torque washer
40: mounting device 41: frame
42: rotating motor 43: rotating shaft
44: locking disc 45: guide disc

Claims (8)

A method of installing an aiming bolt (20) for adjusting a reflector angle in a headlamp of a vehicle,
The aiming bolt 20 is press-fitted into the press-in hole 11 formed in the head lamp housing 10 for press-fitting the aiming bolt 20 into the press-in hole 11, And press-fitting the aramid bolt 20 while rotating the aramid bolt 20,
The step of press-fitting, while rotating,
Into the press-in hole (11) while rotating the aiming bolt (20);
A second step of measuring the rotation torque of the aiming bolt 20 due to friction between the inner circumferential surface of the press-in hole 11 and the outer circumferential surface of the aiming bolt 20 while the press-fitting of the aiming bolt 20 is stopped, ;
It is determined which one of the housing 10 or the aging bolt 20 is defective when the torque measured in the second step is lower than the design target torque value and the housing 10 or the aging bolt 20, And a third step of rotating the aiming bolt 20 at a high speed until the torque measured in the second step exceeds the design target torque value until the target torque value is reached, Characterized in that an inspection of whether the rotational torque magnitude of the bolt (20) is below the design target torque value is made during the installation of the aiming bolt (20). delete delete The method according to claim 1,
Wherein the first to third steps are performed by a rotating and press-fitting device connected to a computer and operated by a program set in a computer, whereby the first to third steps are automatically performed. . A head formed on a front face of a cruciform groove corresponding to a driver blade, a press-in portion extending long from the head, a coupling portion extending further from the press-in portion and forming a thread on the outer circumferential surface, The aiming bolt (20) and the torque washer press-in apparatus for mounting the aiming bolt (20) constituted by a control unit of the shape to a press-fit groove of an aiming bolt (20) formed in a housing (10)
A rotary shaft 43 formed with a screwdriver at an end thereof and coupled to the cruciform groove and having a thread formed on an outer circumferential surface thereof from the end thereof to a predetermined length;
A rotary motor 42 for rotating the rotary shaft 43;
A guide disk 45 having a constant thickness and formed with a guide hole into which a rotary shaft 43 is inserted at the center, and a corresponding thread corresponding to the thread on the inner circumferential surface of the guide hole;
A locking disc 44 detachably attached to the guide disc 45 and having a stopper attached to the guide disc 45 to stop the rotation of the guide disc;
A housing clamp for fixing the housing 10 in the coupling process between the aramid bolt 20 and the housing 10; And
The rotary shaft 43, the rotary motor 42, the guide disc 45 and the frame 41 for variably supporting the locking disc 44,
When the guide disc and the locking disc 44 are separated from each other, the guide disc is idled together with the rotation shaft 43 so that the rotation shaft 43 is rotated in place. When the guide disc and the locking disc 44 are attached, And the rotary shaft (43) is advanced in the axial length direction of the rotary shaft (43) along a corresponding thread formed in the guide hole at the center of the guide disk, while being stopped. 6. The method of claim 5,
A jig is formed on the surface of the guide disc 45 facing the locking disc 44,
The stopper is a corresponding fixture formed on a surface of the locking disk 44 that faces the guide disk 45 and can be coupled to the fixture,
Wherein engaging and disengagement occurs between the jig and the corresponding fixture when the guide disc (45) and the locking disc (44) are detached. The method according to claim 6,
The jig is a gear tooth-like jig that is symmetrically formed radially with alternating bones and mountains with respect to the center of the guide disc (45)
Wherein the corresponding fixture is formed to have the same shape as the fixture and engage with the fixture. 6. The method of claim 5,
A reciprocating drive unit for varying the locking disc 44 such that the locking disc 44 advances or retracts in a direction toward the guide disc 45,
A control unit including a relay, a timer, a counter, and an arithmetic unit is connected to the rotary motor 42 and the reciprocating drive unit to control the operation of the rotary motor 42 and the reciprocating drive unit, ) The aiming bolt (20) and the torque washer press-fitting device are all automatically controlled so as to install the aiming bolt (20) in the press-fitting groove and to test the installation state of the aiming bolt (20).

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